hello there, im confused by these word lose (verb), lost (noun) and loss (noun).. could someone explain it to me? thank Warmest Regards. Both loss and lost have to do with losing. To lose something is to misplace it, to fail to win, to get rid of, or a number of other meanings. To misplace something. Written errors in the use of lose, loose, and loss are common. One error is to write the adjective loose (rhymes with moose) as if it were the verb lose (rhymes.